WordRadar is a keyword and SERP research service for indie builders, SEO researchers and software agents. It includes a Word Ledger of roughly 1M words with first-seen dates, a New Site Radar that tracks new domains appearing on Hacker News, and a Proxy-KD score from 0 to 100 that estimates SERP difficulty from the top 10 results. Trends Risers and a Domain Timeline are also included.
Access is through a web dashboard, a REST API and a native MCP server. The product is in beta. Free access is listed as invite-only beta access with enough credits to validate a niche every week, and the ledger pulse endpoint is listed as free forever. Other queries use prepaid, one-time credit packs paid by card through Stripe: Starter $19 for 2,000 credits, Pro $49 for 6,500 and Bulk $99 for 15,000. Credits do not expire. Pricing may still change during beta.
Keyword research involves comparing when terms appeared, which new products are emerging and how competitive a search result looks. WordRadar brings those research signals into one service that indie builders and software agents can query through REST or MCP.